DomDocumentType->public_id
(PHP 4 >= 4.1.0)
DomDocumentType->public_id — Returns public id of document type
Description
    string DomDocumentType::public_id
     ( void
    )
  This function returns the public id of the document type.
Return Values
Returns the public id of the DomDocumentType, as a string.
Examples
The following example echos nothing.
Example #1 Retrieving the public id
<?php
include("example.inc");
if (!$dom = domxml_open_mem($xmlstr)) {
  echo "Error while parsing the document\n";
  exit;
}
$doctype = $dom->doctype();
echo $doctype->public_id();
?>
Migrating to PHP 5
Use the publicId property of the DOMDocumentType object.